What was found
IAH - FLIGHT 3162, DURING CLIMB THE CREW REPORTED A LAV SMOKE WARNING. THE CREW COMPLETED THE QRH CHECKLIST, AND THE FLIGHT ATTENDANT VERIFIED NO SMOKE, THE AIRCRAFT CONTINUED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT, PERFORMED OPERATIONAL CHECKS OF THE LAV SMOKE DETECTOR WITH NO DEFECTS NOTED. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.